“循环地”用英语怎么说？

常常在夜晚, 他让这首歌无限循环地播放, 将音量调到最小.Often at night, he let this song circularly played again and again, in the lowest volume.在这种结构中, 所有类型的训练符号都在每个天线上循环地发送.In cyclic training structure, all types of training symbols are transmit...